Results 41 to 50 of about 10,026 (250)

Studies in claisen rearrangements a novel oxidative rearrangement of 3-aryloxymethyl-(4H)-benzopyrans

, 1983
3-Aryloxymethyl-(4H)-benzopyrans 2̲ have been found to undergo a novel Oxidative Claisen rearrangement. In contrast, the Claisen rearrangement of 3-aryloxymethyl-(2H)-benzopyrans afforded only the normal products 8̲
Balasubramanian, K. K., Selvaraj, S., Sanjeevi Babu, K. G., Rajagopalan, K.   +3 more
core   +1 more source

Organic photonic synaptic transistors for bionic vision: From spectral engineering to flexible intelligent perception

FlexMat, EarlyView.
Different wavelength photonic synapses are used for biomimetic visual applications. Abstract Bionic intelligent visual perception systems have significant application prospects in fields such as autonomous driving and robotics, medical imaging and auxiliary diagnosis, security and monitoring.
Longlong Jiang, Shan Wu, Silu Feng, Heyi Huang, Wangyu Wu, Hong Han, Yao Ni   +6 more
wiley   +1 more source

Identification of Two Novel Anti-Fibrotic Benzopyran Compounds Produced by Engineered Strains Derived from Streptomyces xiamenensis M1-94P that Originated from Deep-Sea Sediments

Marine Drugs, 2013
The benzopyran compound obtained by cultivating a mangrove-derived strain, Streptomyces xiamenensis strain 318, shows multiple biological effects, including anti-fibrotic and anti-hypertrophic scar properties.
Lei Feng, Xue-Gong Li, Jun Xu, Tie-Sheng Han, Shu-Jie Xie, Min-Juan Xu, Ya-Hui Wang, Zhi-Gang Zhang, Zhong-Yuan You   +8 more
doaj   +1 more source

Metabolic signatures of triatomine vectors of Trypanosoma cruzi unveiled by metabolomics. [PDF]

PLoS ONE, 2013
Chagas disease is a trypanosomiasis whose causative agent is the protozoan parasite Trypanosoma cruzi, which is transmitted to humans by hematophagous insects known as triatomines and affects a large proportion of South America.
Luis Caetano M Antunes, Jun Han, Jingxi Pan, Carlos J C Moreira, Patrícia Azambuja, Christoph H Borchers, Nicolas Carels   +6 more
doaj   +1 more source

Effects of catechins, resveratrol, silymarin components and some of their conjugates on xanthine oxidase‐catalyzed xanthine and 6‐mercaptopurine oxidation

Journal of the Science of Food and Agriculture, Volume 105, Issue 5, Page 2765-2776, 30 March 2025.
Abstract BACKGROUND Over the past two decades, the global incidence of gout has markedly increased, affecting people worldwide. Considering the side effects of xanthine oxidase (XO) inhibitor drugs (e.g. allopurinol and febuxostat) used in the treatment of hyperuricemia and gout, the potential application of phytochemicals has been widely studied.
Tímea Bencsik, Orsolya Balázs, Róbert G Vida, Balázs Z Zsidó, Csaba Hetényi, Kateřina Valentová, Miklós Poór   +6 more
wiley   +1 more source

Revisiting small‐molecule fluorescent probes in food freshness detection

Smart Molecules, EarlyView.
Fluorescent probes serve as versatile tools for food freshness monitoring. This review summarizes recent advances in probes targeting biogenic amines, hydrogen sulfide, pH values, and other key spoilage markers, highlighting their design principles, sensing mechanisms, and practical applications in food quality monitoring. Abstract Food spoilage driven
Xinrui Wang, Zhao Wang, Jingwen Zou, Xuyuan Jiang, Changyu Bian, Zhiqiang Mao   +5 more
wiley   +1 more source

Quantum yields of photocoloration and molar absorption coefficients of ferrocenyl substituted benzo and dibenzochromenes. Comparison with their phenyl-homologues

International Journal of Photoenergy, 2003
The photochromic properties of three ferrocenyl-[2H]-benzopyrans were investigated under monochromatic irradiation and compared with those of their phenyl homologues.
Pierre Brun, Robert Guglielmetti, Jean Claude Micheau, Véronique Pimienta, Stéphane Anguille   +4 more
doaj   +1 more source

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

The Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá, Patrick C. Nobre, Isabelly O. Ferreira, Juliano B. Azeredo, Vanessa Nascimento   +4 more
wiley   +1 more source

Aluminum Triflate Catalyzed Tandem Reactions of d‑Galactal: Toward Chiral Benzopyrans, Chromenes, and Chromans

, 2016
3,4,6-Tri-O-acetyl-d-galactal is selectively converted into 1-O-aryl-2-deoxy derivatives or chiral bridged benzopyrans under Al­(OTf)3 catalysis, depending on reaction conditions.
Sandile B. Simelane (1754836), D. Bradley G. Williams (1517221), Alfred Muller (1754839), Henok H. Kinfe (1754833)   +3 more
core   +1 more source

Natural product‐derived TRPM7 channel inhibitors in neurological injury: Mechanisms, pharmacological potential and translational challenges

British Journal of Pharmacology, EarlyView.
Disruption of intracellular ionic homeostasis is a convergent pathological feature across diverse neurological injuries and disorders, including ischaemic and haemorrhagic stroke, hypoxic–ischaemic brain injury, traumatic brain injury, epilepsy and brain tumour.
Xinyang Zhang, Hio Lam Ho, F. David Horgen, Andrea Fleig, Zhong‐Ping Feng, Hong‐Shuo Sun   +5 more
wiley   +1 more source